Hi anyone.
Can dovecot be configured to authenticate user using only SSL Certificates only and not ask for a password.
So far I've got it taking the username from the common name of the certificate but I like it to use the certificate in place of the password.
Is this possible and how?
-- Regards
Stephen.
On Aug 7, 2008, at 2:49 PM, Stephen Feyrer wrote:
If you're that far, then you're already authenticating the user
against the certificate. Or assuming you have
ssl_require_client_cert=yes. Then just create a passdb that accepts
any password as valid for the user (nopassword=yes extra field).
In theory there's also this EXTERNAL SASL mechanism that could be used
to log in without user/pass, but Dovecot doesn't currrently support
that and I'm not aware of any clients supporting it either.
On Aug 7, 2008, at 5:33 PM, Stephen Feyrer wrote:
If you only want to allow users to log in with certificates, then just
change the PAM configuration file to be something like (not tested,
and my PAM knowledge isn't too good):
auth required pam_allow.so
Although it would be nice to be able to verify that the user still
exists, but you could do that with certificate revocation lists also..
Hi Timo.
Thanks, I will persevere. I would like to point out that I'm only using PAM as it seems the best way to get email to system users. I am open to another method that might work.
This was my pam.d/imap file
Provided by mailbase (dont remove this line!)
Standard pam.d file for mail service packages.
$Header:
/var/cvsroot/gentoo-x86/net-mail/mailbase/files/common-pamd-include,v 1.1 2005/04/29 13:07:50 ticho Exp $
auth required pam_nologin.so auth include system-auth account include system-auth session include system-auth
My pam.d/imap file now looks like this.
Provided by mailbase (dont remove this line!)
Standard pam.d file for mail service packages.
$Header:
/var/cvsroot/gentoo-x86/net-mail/mailbase/files/common-pamd-include,v 1.1 2005/04/29 13:07:50 ticho Exp $
#auth required pam_nologin.so auth required pam_allow.so auth include system-auth account include system-auth session include system-auth
This fails the authentication.
While it looks like this it also fails authentication. (I just thought I'd give it a go.)
Provided by mailbase (dont remove this line!)
Standard pam.d file for mail service packages.
$Header:
/var/cvsroot/gentoo-x86/net-mail/mailbase/files/common-pamd-include,v 1.1 2005/04/29 13:07:50 ticho Exp $
auth required pam_nologin.so auth required pam_allow.so auth include system-auth account include system-auth session include system-auth
-- kind regards
Stephen.
Timo Sirainen wrote:
On Aug 8, 2008, at 5:06 PM, Stephen Feyrer wrote:
Anything that allows you to log in without password checking. For
example a passwd-file containing only valid usernames and nopassword
field. Or maybe SQLite query always returning success.
Yes, because you're still doing a system-auth lookup. You want to
allow anyone to log in with any user/pass combination, so only keep
the pam_allow.so line there.
participants (2)
-
Stephen Feyrer
-
Timo Sirainen